If you are really serious about saving…
Share a single bedroom. Two or even three people per bedroom. $150-200/mo
Eating a diet of eggs, oatmeal, a simple multivitamin and fish oil gets this down to $75-115/mo
Take the bus! Bus pass $30/mo
These are killer. I myself am having many health problems… although if I were really serious about investing I could probably put most of them off for 10 years. Human beings can get by on the above living style.
I’ll let you keep this assumption… but after a couple of years in the private sector a motivated person can break this easily.
So my tabulation would be 1120 - 175 - 90 - 30 - 100 = $725, or 65% of your paycheck.
I count the internet as more than apt entertainment. My internet plan is $30/mo. So I’m still at $695. Computers are a one time expense of $100 if you buy them used… so I’ll include it in the generic bills thingy?
Clothes can be bought on the cheap at goodwill.
3000/695 = 4.3 months to open up a CD @ 3%.
At the rate you calculated, the CD pays off in 33 years. I think there are probably better investments out there… Regardless close to $700/month is a good amount. I do not think the average poor person lives this way. You have to live below your means to accumulate savings. They choose to live right at their means. High time preference I guess.